The first one they fought against yellow fever
Answer: There are no Greeks because you didn't put any options
Explanation: Can you please put the question on here, and edit, so we can see which of the "following" are Greeks??
Answer:
In 1818, the United States and Britain agreed to occupy Oregon Country jointly. Spain and Russia had few settlers there, so they withdrew their claims to Oregon Country region's vast forests, trapping animals and living off the land. They were known as mountain men
Answer:
It helped to guard the secret location of their gold mines.
Explanation: